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AINTENANCE
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ERVICE
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UIDE
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ERIES
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27
Presario 1200 Series
Models: XL101-XL113, XL115, XL118-XL127
Solving Hardware Installation Problems
Some common causes and solutions for hardware installation problems are listed in the
following table.
Solving Keyboard/Numeric Keypad Problems
Some common causes and solutions for keyboard/numeric keypad problems are listed in
the following table.
Solving Hardware Installation Problems
Problem Probable Cause Solution(s)
A new device is not
recognized as part of
the computer system.
Cable(s) of new external
device are loose or power
cables are unplugged.
Ensure that all cables are
proplerly and securely connected.
Power switch of new external
device is not turned on.
Turn off the notebook, turn on the
external device, then turn on the
notebook to integrate the device
with the computer system.
Device is not seated properly. Turn off the notebook and reinsert
the device.
Solving Keyboard/Numeric Keypad Problems
Problem Probable Cause Solution(s)
Embedded numberic
keypad on notebook
keyboard is disabled.
Num Lock function is not
enabled.
Press the Shift+NumLk keys to
enable the Num Lock function and
embedded numberic keypad. The
Num Lock light on the notebook
turns on.
Embedded numeric
keypad is disabled and
Num Lock function is
on.
External numeric keypad is
connected to the notebook.
Disconnect the external numeric
keypad from the notebook.